Varible

foo="Hello"
foo="${foo} World"
echo "${foo}"
> Hello World

Source: stackoverflow.com

Varible

Context                               | Expression            | Result (value of c)
--------------------------------------+-----------------------+---------------------
Two variables                         | c=$a$b                | helloworld
A variable and a literal              | c=${a}_world          | hello_world
A variable and a literal              | c=$1world             | oneworld
A variable and a literal              | c=$a/world            | hello/world
A variable, a literal, with a space   | c=${a}" world"        | hello world
A more complex expression             | c="${a}_one|${b}_2"   | hello_one|world_2
Using += operator (Bash 3.1 or later) | c=$a; c+=$b           | helloworld
Append literal with +=                | c=$a; c+=" world"     | hello world

Source: stackoverflow.com

Similar codes

110 votes178 views6 answers
Npm update
Shell/Bash
0 vote201 views0 answer
Shell/Bash
0 vote207 views1 answer
How to git push in jenkins pipeline
Shell/Bash
0 vote225 views1 answer
Display used shell
Shell/Bash
0 vote182 views4 answers
Install bind9 ubuntu 16.04
Shell/Bash
1 vote177 views1 answer
Bash tee stdout and stderr
Shell/Bash
0 vote190 views1 answer
Typedef redefinition with different types ('uint8_t' (aka 'unsigned char') vs 'enum clockid_t') react native
Shell/Bash
2 votes182 views1 answer
Ionic capacitor build livereload
Shell/Bash
1 vote227 views1 answer
Unix get epoch in miliseconds shell
Shell/Bash
1 vote177 views1 answer
Proc folder
Shell/Bash